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以晋西北某机场高填方地基工程为背景,根据边坡初步设计及其稳定性初始分析结果,结合大型离心模型试验对机场场区高边坡10个典型断面进行稳定性数值分析。分析结果表明:机场场区边坡在天然条件下基本是稳定的,但在饱和状态下极易失稳;边坡填方体主要以竖向变形为主,并伴随向边坡外的水平位移,且越靠近坡顶,竖向分量越大;边坡最大剪应变位置主要集中在填筑体与天然地基的接触面上;边坡破坏时,坡顶与坡脚的位移量随填方高度和厚度的增加而增大。
Based on the preliminary design of the slope and the initial analysis of its stability, a large-scale centrifuge model test is used to analyze the stability of ten typical sections of the high slope in the airport field. The analysis results show that the slope of the airport yard is basically stable under natural conditions, but it is easily destabilized in the saturated condition. The main deformation of the slope fillings is vertical deformation, with the horizontal displacement to the outside of the slope , And the greater the vertical component is, the closer to the top of the slope. The maximum shear strain of the slope is mainly concentrated on the contact surface between the filled body and the natural foundation. When the slope is damaged, the displacement of the top and bottom of the slope varies with the filling height And increase in thickness increases.